The Pulse Oximeter is a reliable way to spot-check blood oxygen saturation (SpO2) pulse rate (bpm) and volume of blood flow (perfusion index). This lightweight and portable device takes fast, non invasive measurements at your fingertip. Measures your blood oxygen saturation and pulse rate from your mobile device Records SpO2 and pulse rate Easy-to-read LED screen displays SpO2, pulse rate and perfusion index Connects wirelessly via Bluetooth 4.0 with low energy technology Free iHealth App and Cloud service include personalized health tools Supplied with lanyard and USB charging cable.